EP1003652A2 - Configuration de volet detachable d'airbag realise dans la masse - Google Patents

Configuration de volet detachable d'airbag realise dans la masse

Info

Publication number
EP1003652A2
EP1003652A2 EP99933517A EP99933517A EP1003652A2 EP 1003652 A2 EP1003652 A2 EP 1003652A2 EP 99933517 A EP99933517 A EP 99933517A EP 99933517 A EP99933517 A EP 99933517A EP 1003652 A2 EP1003652 A2 EP 1003652A2
Authority
EP
European Patent Office
Prior art keywords
air bag
door
trim panel
inflatable restraint
tear guide
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP99933517A
Other languages
German (de)
English (en)
Other versions
EP1003652B1 (fr
Inventor
Edwin V. Stawicki
Nelson J. Morren
John J. Kennedy
Vernon A. Daniels
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Textron Automotive Co Inc
Original Assignee
Textron Automotive Co Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Textron Automotive Co Inc filed Critical Textron Automotive Co Inc
Publication of EP1003652A2 publication Critical patent/EP1003652A2/fr
Application granted granted Critical
Publication of EP1003652B1 publication Critical patent/EP1003652B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
    • B60R21/215—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components characterised by the covers for the inflatable member
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/1703—Introducing an auxiliary fluid into the mould
    • B29C45/1704—Introducing an auxiliary fluid into the mould the fluid being introduced into the interior of the injected material which is still in a molten state, e.g. for producing hollow articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
    • B60R21/201—Packaging straps or envelopes for inflatable members
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
    • B60R21/205—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in dashboards
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
    • B60R21/215—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components characterised by the covers for the inflatable member
    • B60R21/216—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components characterised by the covers for the inflatable member comprising tether means for limitation of cover motion during deployment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
    • B60R21/215—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components characterised by the covers for the inflatable member
    • B60R21/2165—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components characterised by the covers for the inflatable member characterised by a tear line for defining a deployment opening
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
    • B29L2031/3005—Body finishings
    • B29L2031/3038—Air bag covers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
    • B60R21/215—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components characterised by the covers for the inflatable member
    • B60R2021/21537—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components characterised by the covers for the inflatable member characterised by hinges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
    • B60R21/21—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in vehicle side panels, e.g. doors

Definitions

  • This invention relates generally to an air bag door that is integrally formed with a vehicle trim panel, and, more particularly, to such an air bag door configured to break and/or tear open in a predictable way and a method for making such a door.
  • inflatable restraint systems having integrally formed air bag doors to include some means of insuring that the air bag doors break and/or tear open in a generally predictable way. This is true for driver- side inflatable restraint systems (DSLRs), passenger-side inflatable restraint systems (PSLRs) and inflatable restraint systems in vehicle door panels, quarter panels; other sidewall structures, seats, headliners, pillars, etc.
  • DSLRs driver- side inflatable restraint systems
  • PSLRs passenger-side inflatable restraint systems
  • the air bag doors in such systems open to provide a path for an air bag to deploy through. It is also desirable for such systems to include means for insuring that portions of the door do not separate from the system when an air bag deploys and forces the door open.
  • Tear seams are weak areas designed to tear and/or break when an air bag inflates and forces the door to open.
  • Some of these systems also employ tethers and/or hinges that retain the air bag door to the instrument or trim panel after the door has torn and/or broken open.
  • United States Patent number 5,569,959 issued to Cooper et al., discloses an inflatable restraint assembly comprising an air bag door retainer portion integrally formed in an automotive instrument panel retainer and defined by a door seam.
  • a tear guide is included in a skin cover disposed over a foam layer that extends across the door opening.
  • a metal hinge panel is embedded within the instrument panel retainer and spans a portion of the door seam.
  • Cooper et al. also disclose a method for making such an inflatable restraint assembly. The method includes pre-molding the hinge panel into the hard instrument panel retainer portion such that the hinge panel spans the door seam.
  • a supplemental inflatable restraint system that includes an integrally formed air bag door having retaining structure that retains the door during air bag deployment and that can be formed with the air bag door instead of requiring a secondary operation.
  • a system that includes tear-guiding structure that guides tearing during air bag deployment and that can be formed with the air bag door instead of requiring a secondary operation.
  • the hinge includes a first end embedded in a portion of the first material that forms the door and a second end embedded in a portion of the first material that forms the instrument panel.
  • a mid portion of the hinge is disposed between the first and second ends and has an outer surface covered with a portion of the first material that forms the outer class-A surface of the door and instrument panel.
  • the mid portion also has an exposed inner surface disposed opposite the outer surface that is not covered with the first material.
  • the second material includes any one or more materials from a group of materials including thermoplastic rubber, glass matte, fabric and metal.
  • a skin layer is supported on the trim panel and a foam layer may be disposed between the trim panel and the skin layer.
  • the tear guide is defined by an elongated gap disposed between the first and second tubular channels.
  • the gap itself serves as a tear guide obviating the need to form a separate tear guide such as a groove or a series of apertures.
  • a method for making an inflatable restraint assembly for passengers in automotive vehicles.
  • the method includes providing a mold configured to form the shape of the integral air bag door and instrument panel and inserting a sheet of the second material into the mold in a position spanning a region of the mold configured to form the door seam.
  • the first material is introduced in molten form into the mold such that the sheet of the second material is at least partially embedded in the first material.
  • the first material is allowed to cure within the mold and the cured first material and at least partially embedded sheet of the second material are removed from the mold.
  • Figure 1 is a cross-sectional view of a hinge constructed according to the present invention
  • Figure 3 is a cross-sectional view of a break-away/tear seam of a second embodiment of an integral air bag door and instrument panel constructed according to the invention
  • Figure 8 is a cross-sectional view of a hinge constructed according to a fourth embodiment of the invention.
  • hinge panel inner surface 38 disposed opposite the hinge panel outer surface 34.
  • the hinge panel inner surface 38 is left exposed to promote bending along the hinge.
  • the second embodiment 310 of the invention includes two tubular channels 312, 314.
  • the tubular channels 312, 314 are disposed adjacent and parallel to each other.
  • the channels 312, 314 run astride and define an elongated gap or seam 316 that defines an integral air bag door 318 in an instrument panel retainer 320.
  • the seam 316 also serves as a tear guide between the two tubular channels 312, 314.
  • a skin layer 40 may supported on the trim panel retainer 320 and a foam layer 42 may be disposed between the trim panel retainer 320 and the skin layer 40.
  • the third embodiment 410 of the invention includes two tubular channels 412, 414.
  • the tubular channels 412, 414 are disposed adjacent and parallel to each other.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Air Bags (AREA)
  • Instrument Panels (AREA)

Abstract

La présente invention concerne un ensemble de retenue gonflable destiné aux passagers d'automobiles, comprenant un volet détachable (1) d'airbag réalisé dans la masse d'un garnissage intérieur (14) d'automobile fabriqué dans un premier matériau. Le volet détachable d'airbag est défini au moins en partie par une amorce de rupture (18) correspondant à une position de fermeture. Le volet détachable d'airbag est capable de quitter la position de fermeture pour fournir à l'airbag (12) un espace dans lequel il se déploie. Le volet détachable s'ouvre en se séparant au moins en partie du panneau de garnissage (14) le long du joint (20) du volet formé partiellement par l'amorce de rupture (18). Une structure de retenue est configurée pour empêcher au moins une partie du volet détachable de quitter totalement le panneau de garnissage pendant le déploiement de l'airbag. Selon un des modes de réalisation, une charnière (22) fabriquée dans un second matériau (24) qui est enchâssée au moins en partie dans le premier matériau recouvre le joint (20) du volet détachable. Selon un autre mode de réalisation, un canal tubulaire (214) peut être réalisé le long de l'amorce de rupture (18) pour créer un différentiel de force important avec le joint du volet détachable, et aider ainsi à limiter la rupture de l'amorce de rupture pendant le déploiement de l'airbag.
EP99933517A 1998-06-19 1999-06-17 Configuration de volet detachable d'airbag realise dans la masse Expired - Lifetime EP1003652B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US8986398P 1998-06-19 1998-06-19
US89863P 1998-06-19
PCT/US1999/013686 WO1999065739A1 (fr) 1998-06-19 1999-06-17 Configuration de volet detachable d'airbag realise dans la masse

Publications (2)

Publication Number Publication Date
EP1003652A2 true EP1003652A2 (fr) 2000-05-31
EP1003652B1 EP1003652B1 (fr) 2004-08-25

Family

ID=22219955

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99933517A Expired - Lifetime EP1003652B1 (fr) 1998-06-19 1999-06-17 Configuration de volet detachable d'airbag realise dans la masse

Country Status (9)

Country Link
US (1) US6260875B1 (fr)
EP (1) EP1003652B1 (fr)
JP (1) JP2002518237A (fr)
KR (1) KR100597136B1 (fr)
AU (1) AU4956199A (fr)
BR (1) BR9906534A (fr)
CA (1) CA2300292A1 (fr)
DE (1) DE69919662T2 (fr)
WO (1) WO1999065739A1 (fr)

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JP4715030B2 (ja) * 2001-05-21 2011-07-06 タカタ株式会社 乗員脚部保護装置
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FR2855806B1 (fr) * 2003-06-05 2006-06-23 Visteon Global Tech Inc Dispositif d'articulation formant charniere avec limitation de mouvement et arrangement de coussin gonflable le comprenant
US7234726B2 (en) * 2004-12-16 2007-06-26 Visteon Global Technologies, Inc. Airbag assembly for improving force distribution
EP1754635A1 (fr) * 2005-08-11 2007-02-21 Peguform Bohemia k.s. Tableau de bord avec couvercle de sac gonflable intégrée et procédé pour sa fabrication
WO2007111787A1 (fr) * 2006-03-23 2007-10-04 Exxonmobil Chemical Patents Inc. Module central de porte
JP2011001009A (ja) * 2009-06-19 2011-01-06 Honda Motor Co Ltd エアバッグのカバー体及びエアバッグ装置
DE102012012249A1 (de) * 2011-08-05 2013-02-07 Johnson Controls Interiors Gmbh & Co. Kg Fahrzeuginnenausstattung mit Austrittsklappe für einen sich entfaltenden Luftsack
US9434095B2 (en) 2014-05-06 2016-09-06 Ford Global Technologies, Llc Hybrid composite utilizing gas-assisted molding geometries
US9446540B2 (en) 2014-05-06 2016-09-20 Ford Global Technologies, Llc Hybrid composite utilizing injection-expansion molding
FR3083759B1 (fr) * 2018-07-10 2022-07-01 Reydel Automotive Bv Ensemble de garniture pour volet d'airbag
DE102022213000A1 (de) * 2022-12-02 2024-06-13 Volkswagen Aktiengesellschaft Verfahren zur Herstellung einer Instrumententafel für ein Fahrzeug

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Also Published As

Publication number Publication date
JP2002518237A (ja) 2002-06-25
KR100597136B1 (ko) 2006-07-07
CA2300292A1 (fr) 1999-12-23
EP1003652B1 (fr) 2004-08-25
KR20010023026A (ko) 2001-03-26
WO1999065739A8 (fr) 2000-02-03
WO1999065739A1 (fr) 1999-12-23
BR9906534A (pt) 2000-08-15
AU4956199A (en) 2000-01-05
DE69919662T2 (de) 2005-08-18
US6260875B1 (en) 2001-07-17
DE69919662D1 (de) 2004-09-30

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